Shivaji University 2010-5th Sem B.E T.E(Electrical)- , Digital Signal Processing(New) - Question Paper
DSP-Digital Signal Processing is 3rd year subject consisting of 100 marks paper in fifth semester for third year electrical engineering students.
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Seat p No.
T.E. (Electrical) (Semester - V) Examination, 2010 DIGITAL SIGNAL PROCESSING (New Course)
Day and Date : Monday, 6-12-2010 Max. Marks * 100
Time ; 10,00 a.m. to 1.00 p.m.
Note: Attempt any three questions from each Section.
SECTION -1
1. a) Explain DSP system with block diagram and comment on the properties of
DSP system. 8
b) Explain with general mathematical form of equation the recursive and non
recursive representation of DSP system. 8
2. a) Compute the circular convolution using DFT and IDFT if
h(n)=[2, 1,2, 1].
b) Explain with signal flow' graph DTT-FFT algorithm. 8
3. a) With the help of DIF-FFT algorithm compute DFT of sequence given as
X (n) - [I, 1, 1, 1,0, 0,0, 1]. 8
b) Explain Decimation and Interpolation operations and comment on the use of it. 8
, a) Explain sampling theorem and requirement of changing sampling rate. 8
b) Obtain the convolution using overlap-save method if
h (n) = [Ij 1, 1].
5. a) Obtain the direct fomi-II and cascade realization of
LJ/ i z +z
= -Z ft
z +5z + 6 *
b) Explain Linear phase property of FIR fi Iter and compare it with HR filter 8
6. a) Design a second order low pass digital filters of Buttenvorth type using BLT
method if cutoff frequency is 1 KHz and sampling frequency is 10 kHz.
Also realize the filter structure in direct form I. jq
b) Explain with block diagram general architecture for DSP processor TMS 320 XX. g
7. a) Explain Gibb's phenomenon and use of'Windowing' in FIR filter. 8 b) Explain the effectof finite word length on the stability and frequency response. 8
S a) Design DT-High pass filter using BLT if the cutoff'frequency is 30 Hz and sampling frequency is 1 SO Hz Assume that order of filter is one. Also realize the filter, structure in direct form I g
b) Explain frequency sampling method for niter design. s
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| Earning: Approval pending. |
